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Add feature for invoking namespaced functions

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When coupled with the latest version of faas-netes, the gateway
can now invoke, query and deploy functions into alternative
namespaces.

Tested e2e by creating a namespace "fn" and deploying, then
invoking a function deployed there and in the default namespace.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This commit is contained in:
Alex Ellis (OpenFaaS Ltd)
2019-09-20 13:21:29 +01:00
committed by Alex Ellis
parent 0a90125aba
commit 238ce1be23
9 changed files with 198 additions and 47 deletions
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10
gateway/handlers/forwarding_proxy.go
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@ -179,7 +179,8 @@ func (s SingleHostBaseURLResolver) Resolve(r *http.Request) string {
// FunctionAsHostBaseURLResolver resolves URLs using a function from the URL as a host
type FunctionAsHostBaseURLResolver struct {
FunctionSuffix string
FunctionSuffix string
FunctionNamespace string
}
// Resolve the base URL for a request
@ -188,8 +189,13 @@ func (f FunctionAsHostBaseURLResolver) Resolve(r *http.Request) string {
const watchdogPort = 8080
var suffix string
if len(f.FunctionSuffix) > 0 {
suffix = "." + f.FunctionSuffix
if index := strings.LastIndex(svcName, "."); index > -1 && len(svcName) > index+1 {
suffix = strings.Replace(f.FunctionSuffix, f.FunctionNamespace, "", -1)
} else {
suffix = "." + f.FunctionSuffix
}
}
return fmt.Sprintf("http://%s%s:%d", svcName, suffix, watchdogPort)